The Ritual of Mok'tagar was a ritual performed by Mok'tagar Demons in order to steal the souls of humans and take it as their own. The ritual involved the ingestion of animal blood while slumbering on the victim's part.

The Mok'tagar known as Kathy Newman performed the ritual at least twice on Buffy Summers to take her soul in an attempt to hide from two fellow Mok'tagar sent to track her down by her father Taparrich.